ALEXANDRIA, Va., Aug. 5 -- United States Patent no. D1,138,117, issued on Aug. 4, was assigned to QINGDAO KINGON MEDICAL SCIENCE AND TECHNOLOGY Co. LTD. (Qingdao, China).
"Bag for an oxygen concentrator" was invented by Yuhan Huang (Qingdao, China).
The patent was filed on July 25, 2025, under Application No. D/014,943.
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